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1 # Copyright 2014 The Chromium Authors. All rights reserved. | 1 # Copyright 2014 The Chromium Authors. All rights reserved. |
2 # Use of this source code is governed by a BSD-style license that can be | 2 # Use of this source code is governed by a BSD-style license that can be |
3 # found in the LICENSE file. | 3 # found in the LICENSE file. |
4 | 4 |
5 import logging | 5 import logging |
6 | 6 |
7 from common import chrome_proxy_metrics as metrics | 7 from common import chrome_proxy_metrics as metrics |
8 from telemetry.core import exceptions | 8 from telemetry.core import exceptions |
9 from telemetry.page import page_test | 9 from telemetry.page import page_test |
10 | 10 |
11 class ChromeProxyValidation(page_test.PageTest): | 11 class ChromeProxyValidation(page_test.PageTest): |
12 """Base class for all chrome proxy correctness measurements.""" | 12 """Base class for all chrome proxy correctness measurements.""" |
13 | 13 |
14 # Value of the extra via header. |None| if no extra via header is expected. | 14 # Value of the extra via header. |None| if no extra via header is expected. |
15 extra_via_header = None | 15 extra_via_header = None |
16 | 16 |
17 def __init__(self, restart_after_each_page=False, metrics=None): | 17 def __init__(self, restart_after_each_page=False, metrics=None): |
18 super(ChromeProxyValidation, self).__init__( | 18 super(ChromeProxyValidation, self).__init__( |
19 needs_browser_restart_after_each_page=restart_after_each_page) | 19 needs_browser_restart_after_each_page=restart_after_each_page) |
20 self._metrics = metrics | 20 self._metrics = metrics |
21 self._page = None | 21 self._page = None |
22 # Whether a timeout exception is expected during the test. | |
23 self._expect_timeout = False | |
24 | 22 |
25 def CustomizeBrowserOptions(self, options): | 23 def CustomizeBrowserOptions(self, options): |
26 # Enable the chrome proxy (data reduction proxy). | 24 # Enable the chrome proxy (data reduction proxy). |
27 options.AppendExtraBrowserArgs('--enable-spdy-proxy-auth') | 25 options.AppendExtraBrowserArgs('--enable-spdy-proxy-auth') |
28 | 26 |
29 def WillNavigateToPage(self, page, tab): | 27 def WillNavigateToPage(self, page, tab): |
30 tab.ClearCache(force=True) | 28 tab.ClearCache(force=True) |
31 assert self._metrics | 29 assert self._metrics |
32 self._metrics.Start(page, tab) | 30 self._metrics.Start(page, tab) |
33 | 31 |
34 def ValidateAndMeasurePage(self, page, tab, results): | 32 def ValidateAndMeasurePage(self, page, tab, results): |
35 self._page = page | 33 self._page = page |
36 # Wait for the load event. | 34 # Wait for the load event. |
37 tab.WaitForJavaScriptExpression('performance.timing.loadEventStart', 300) | 35 tab.WaitForJavaScriptExpression('performance.timing.loadEventStart', 300) |
38 assert self._metrics | 36 assert self._metrics |
39 self._metrics.Stop(page, tab) | 37 self._metrics.Stop(page, tab) |
40 if ChromeProxyValidation.extra_via_header: | 38 if ChromeProxyValidation.extra_via_header: |
41 self._metrics.AddResultsForExtraViaHeader( | 39 self._metrics.AddResultsForExtraViaHeader( |
42 tab, results, ChromeProxyValidation.extra_via_header) | 40 tab, results, ChromeProxyValidation.extra_via_header) |
43 self.AddResults(tab, results) | 41 self.AddResults(tab, results) |
44 | 42 |
45 def AddResults(self, tab, results): | 43 def AddResults(self, tab, results): |
46 raise NotImplementedError | 44 raise NotImplementedError |
47 | 45 |
48 def StopBrowserAfterPage(self, browser, page): # pylint: disable=W0613 | 46 def StopBrowserAfterPage(self, browser, page): # pylint: disable=W0613 |
49 if hasattr(page, 'restart_after') and page.restart_after: | 47 if hasattr(page, 'restart_after') and page.restart_after: |
50 return True | 48 return True |
51 return False | 49 return False |
52 | |
53 def RunNavigateSteps(self, page, tab): | |
54 # The redirect from safebrowsing causes a timeout. Ignore that. | |
55 try: | |
56 super(ChromeProxyValidation, self).RunNavigateSteps(page, tab) | |
57 if self._expect_timeout: | |
58 raise metrics.ChromeProxyMetricException, ( | |
59 'Timeout was expected, but did not occur') | |
60 except exceptions.TimeoutException as e: | |
61 if self._expect_timeout: | |
62 logging.warning('Navigation timeout on page %s', | |
63 page.name if page.name else page.url) | |
64 else: | |
65 raise e | |
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